1THE EFFECT OF GALACTOSE ON THE GROWTH OF LEMNA
Article first published online: 2 MAY 2006
Volume 82, Issue 3, pages 679–685, May 1979
How to Cite
DeKOCK, P. C., CHESHIRE, M. V., MUNDIE, C. M. and INKSON, R. H. E. (1979), 1THE EFFECT OF GALACTOSE ON THE GROWTH OF LEMNA. New Phytologist, 82: 679–685. doi: 10.1111/j.1469-8137.1979.tb01662.x
- Issue published online: 2 MAY 2006
- Article first published online: 2 MAY 2006
- (Accepted 8 September 1978)
Solutions of 0·1% galactose were toxic to Lemna gibba in axenic culture. The toxicity was counteracted by glucose and exacerbated by ethanol. Plants showing toxicity accumulated large amounts of starch and showed a mineral analysis typical of ageing fronds.
Radioactively labelled galactose was readily transformed to glucose by plants in toxic conditions. The distribution of activity suggests only a slight impairment of cellulose synthesis. Although hormonal disturbances are probably involved, the fact that galactose is toxic to both plants and animals suggests that a more fundamental aspect of metabolism is involved.